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Primitive Perfect Isosceles Right Triangled Square

Title: __ 19:216CS2of2 GHM

Order: 19

Horizontal side: 216 Vertical side: 216

Elements: 2√2, 4, 3√2, 4√2, 6, 6√2, 8√2, 14√2, 20, 20√2, 40, 34√2, 74, 54√2, 71√2, 74√2, 108, 142, 108√2.

Code: 1425 0 74 1084 108 108 1083 216 108 344 142 74 206 156 88 407 176 108 546 162 54 86 148 80 205 156 68 63 148 74 62 154 74 745 0 0 744 74 0 36 145 71 20 154 74 40 152 72 41 156 72 710 145 71 144 162 54

The properties below may precede order:side in a tiling's title:

Credit for Discovery

Just three people are credited with the discovery of Primitive Perfects:

Geoffrey H. Morley (GHM, England)

Jasper D. Skinner, II (JDS, United States)

William T. Tutte (WTT, Canada, 1917-2002) (15:44AI, 17:136AJ and 19:56AJ only)

142
108√2
108
34√2
20√2
40
54√2
8√2
20
6
6√2
74
74√2
3√2
2√2
4√2
4
71√2
14√2